C31231211113313112133313331311331333133313331333133312111133132213221   >>    C3123121111331311213331333131133133313331333133313331211113313221322   <<    C31231211113313112133313331311331333133313331333133312111133132213223   >>      C31231211113313112133313331311331333133313331333133312111133132213222   >>